67 Dart Build Triangulated 4 link & Mini Tub

yeah I have the 2010 rule book, and we have not even cut a piece of tubing without reading it. And it's usually read 3 or 4 times to make sure we understand everything before we start the tube. Like the main hoop must be behind the drivers head no more than 6 inches. The hoop must be 4in above the drivers head or within 1in of the roof if 4in cannot be maintained. The 6x6 plate for the main hoop must connect to the factory rocker box. And can be bolted or welded to the floor. But it must follow to contore of the floor. The bars going into the trunk need to be set up no less than 30 degrees from vertical. And they have requirements on tubing size vs how long the bars can be as well. My cage is 1 and 3/4 tubing witch is slihtly larger than the largest size listed but the mandrel we have for the tubing bender is that size so we went with it.